JPS5850248A - Upstair block - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a stair block used as a unit material when constructing stairs.

BACKGROUND OF THE INVENTION Conventionally, when constructing stairs in buildings, parks, roads, etc., construction structures as shown in FIGS. 1 and 2 have been adopted.

In Figure 1, 1 is the stair foundation, 2 is the 2m riser and the tread 2.
A stair block with a road-shaped cross section, which is integrally formed with b.
3 shows the mortar in which the stair block 2 is arranged and fixed on the foundation 1. .

Further, in FIG. 2, 1 indicates a stair foundation, 2 indicates a stair block in which 1-inclusive 2C and a tread 2d are molded separately, and mortar in which a 3-company stair block 2 is arranged and fixed on the foundation 1.

Therefore, in any of the above structures, stone or concrete is used as the stair block material, but the stair block 2 having the structure shown in Fig. 1 has risers 2a and treads 2.
b are integrally molded and carved in advance, the number of man-hours required is reduced compared to the stair block 2 shown in FIG. 2, in which the riser 2C and the tread 2d are molded separately. When building stairs step by step from the bottom floor, it is difficult to insert the mortar 3 near the corner A of the joint between the riser 2a and the tread IIjL2b, making the mortar driving work complicated. In addition, as mentioned above, since the shape is a cross-sectional shape, it is bulkier during transportation compared to the stair block 2 of FIG. 2 in which the riser 2C and the tread 2d are formed separately The disadvantage is that the amount of transport per shipment is limited.

On the other hand, in the stair block 2 having the structure shown in Fig. 2, the risers 20 and the treads 2d are molded separately, so when building the stairs one step at a time from the bottom floor, it is easier to build up the stairs than in the case of Fig. 1. Although the mortar work is easy and the bulk during transportation is reduced, on the other hand, since it is necessary to bond the indentation 2C and the rigid plate 2d with mortar separately, the number of man-hours is the first. This will increase compared to the case shown in the figure.

The present invention has been made in consideration of the above points, and includes:
The objective is to provide a new stair block that simultaneously simplifies mortar pouring work and reduces work man-hours, while also reducing bulk when transporting materials. be.

In the present invention, the stairway parting member and the hoof board piece are each formed into a flat plate shape, and the above-mentioned one parting member and the tread member are
They are designed to be integrally juxtaposed and connected via a connecting member that can be bent and deformed.

The present invention will be explained below based on an embodiment shown in FIGS. 3 to 6. FIG. 5 is a longitudinal cross-sectional view obtained when manufacturing the stair block of the present invention, and FIG. 6 is a plan view of FIG. 5.
The stair block 2 is made up of a single-piece member 2C and a tread member 2f, and the riser member 2e and rigid plate member 2f are each formed into a flat plate shape from concrete. In addition to concrete, so-called artificial stone obtained by mixing and stirring powdered stone, sand, and cement may be used for the above-mentioned riser member 2e and tread member 2f. 4
The #i reinforcing bars 4 are buried astride the base member 2e and the tread member 2f.

In the above configuration, the stone 1-containing member 2e and the rigid plate member 2f that make up the stair block 2 are bent at an appropriate time after the product is manufactured. As shown in the figure, a large number of stair blocks 2
It is arranged and fixed on the foundation 1 through mortar 3t. That is, the tread member 21 of the other stair block 2 is placed on the base member 2C of the stair block 2 bent in the cross section, and by repeating this operation, the lower floor of the staircase is It is built up from the top to the upper floors. Note that in order to reduce the gap formed by bending the vertical side member e with respect to the tread member 2f (the part indicated by the symbol G in FIG. 4), the one-piece member 2e and the tread member 2f shown in FIG. It is necessary to minimize the presence of reinforcing bars 4 between the respective mating surfaces 5.5, but in order to do so, the reinforcing bars 4 near No. 5 of the vertical side member 2e and the double tread member should be It is best to bury it in a position opposite to the direction of the bend. Furthermore, when bending the vertical side member 2e and the tread member 21, corrosion of the reinforcing bars 4 can be effectively prevented by applying mortar or other adhesive between the two parts [5, 5]. Other embodiments of the present invention are shown in FIGS. 7 and 8.

In the embodiment shown in FIG. 7, a non-slip #I#6 is provided on the upper surface of the tread member 2f, and a λ engagement recess 7 is provided on the lower surface of the tread member 2f. The case where the vertical side member 2et of the floor R flock 2 is inserted is shown.

In the embodiment shown in FIG. 8, the right side member 2e and the tread member 2
The following is an example of a case in which the width of the reinforcing bar 4' located near the joint with f is widened to improve the stiffness of the bending part between the closing member 2e and the plate member 2f.

The present invention has the above configuration, and the effects of the present invention are listed below.

(1) The stairway block member 2e and the tread member 2f that make up the stair block 2 are integrally attached via the bendable and deformable connecting member 4, so that the connecting member 4 can be simply bent during on-site work. The nerikomi and the rigid board are constructed three-dimensionally, and as in the conventional example shown in Fig.
There is no need to separately bond the parts with mortar, and therefore, the number of man-hours is reduced as in the conventional example shown in Fig. 1. By changing the inclination angle of the mating surface with member 2f, the tread member 2
The corner angle when the electrically conductive member 2e is bent relative to the electrically conductive member 2e can be changed as appropriate.

(2) When building stairs from the upper floor to the upper floor, complete mortaring on the rising back of the - staircase block 2 (the back of the base material 2e), Since the tread member 2f of the stair block 2 rests on the stair block 2, the mortar driving work does not become complicated as shown in Fig. 1, and the work can be simplified as in the case of Fig. 2. ) The J11'-included member 2e and the treadle member 2t are formed into flat plate shapes during factory manufacturing, so they are easier to manufacture than the three-dimensional ones shown in Fig. 1, and are easier to transport. As described in detail, according to the present invention, it is possible to simultaneously simplify mortar driving workability and reduce the number of work steps.
Furthermore, it is possible to reduce the bulk when transporting materials.
New stair blocks can be provided.

In addition, in the illustrated embodiment, the stair block 2 of the present invention
f:, Although we have illustrated the case where it is installed (supported) on the foundation 1 via the mortar 3, in addition, for example, a pair of left and right steel frames is installed on the foundation l, and a beam is installed between the pair of left and right steel frames. After the material is stretched and pushed in, one end of the connecting metal fitting is locked to the reinforcing bar 4, and the other end of this connecting metal fitting is connected to the connecting metal fitting previously attached to the steel frame material side via a stopper. If they are connected mechanically, it is possible to obtain stairs that do not require pouring mortar.

[Brief explanation of drawings]

Figures 1 and 2 are both explanatory diagrams of the construction structure of the conventional stair block, Figures 3 to 6 show an embodiment of the present invention, and Figure 3 is an explanatory diagram of the construction structure of the stair block of the present invention. , 47 is a partially enlarged sectional view of FIG. 3, FIG. 5 is a longitudinal sectional view of the stair block of the present invention during manufacture, FIG. 6 is a plan view of FIG. 5, and FIG. 7 is a partially enlarged sectional view of FIG. DESCRIPTION OF CONSTRUCTION STRUCTURE OF STAIR BLOCK SHOWING EMBODIMENT-1 FIG. 8 is a plan view of a stair block showing still another embodiment of the present invention at the time of manufacture. 2... Stair block, 2e... Intake member, 2f...
・Treadboard member, 4...Reinforcing bar. Fang 1 figure 1 and 2 Fang figure 3 + 5 figure O 6 figure

Claims (1)

[Claims] 1. A staircase characterized in that a stair riser member and a tread member are each formed into a flat plate shape, and the riser member and tread member are integrally juxtaposed and connected via a bendable and deformable connecting member. block.